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Fortress Power EV 6500-S > 6,500 Watt 48 Volt Split / Single Phase Off-Grid Solar Inverter
Fortress Power EV 6500-S > 6,500 Watt 48 Volt Split / Single Phase Off-Grid Solar Inverter
 
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Our Price: $1,689.00
Warranty: 10 Years


Availability: Pre-Order Available. Expected to ship October 2025.
Product Code: FORTRESS-EV-6500-S
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Description Datasheet
 

Fortress Power > 6.5kW 48V Split / Single Phase Off-Grid Solar Inverter

Manufacturer Part Number: EV 6500-S

Reliable, Flexible Power for Off-Grid & Backup Applications
The Fortress Power EV6500-S is a versatile 6.5kW split/single-phase off-grid inverter designed for backup power, peak shaving, and smart energy management. With support for both grid and generator input, a built-in 140A solar charge controller, and intelligent switching, it delivers reliable performance in any environment. Time-of-use scheduling, optional CTs for added safety, and parallel support for up to six units (39kW) make it ideal for off-grid homes, microgrids, and hybrid solar systems.

Supported Applications

  • Battery Backup
  • Off-Grid
  • Peak Shaving
  • Microgrid
  • Net Metering
  • Smart Load

Specifications

General Data
Weight 47.84 lbs
(21.7 kg)
Dimensions 25.5 x 16.1 x 5.5 in
(648 x 410 x 140 mm)
Protection Level IP20 (for indoor use only)
Operating Temperature 14 ºF - 131 ºF (-10 ºC - 55 ºC), >45 ºC derating
Noise <60db
Cooling Fan
Inverter Output
Rated Output Power 6,500 Watts
Maximum Peak Power 13,000 VA
Rated Output Voltage 120/240 VAC (Single/Split-Phase)*
* Adjustable
Rated Frequency 50/60Hz*
* Adjustable
Output Wave Pure Sine Wave
Switching Time 10 ms (typical value)
Parallel Number 6
Battery Parameters
Compatible Battery Type Lithium-ion battery / lead-acid battery / user- defined battery*
* Adjustable
Rated Battery Voltage 48V
Battery Voltage Range 40 Vdc-60 Vdc*
Maximum Grid/Generator Charge Current 80 A DC*
* Adjustable
Maximum Battery Charge Current 140 A DC*
* Adjustable
PV Input
MPPT Channel Number 2
Maximum Input Power 5,000W + 5,000W
Maximum Input Short Circuit Current 18 / 18 A
Maximum Open Circuit Voltage 550 Vdc / 550Vdc
MPPT Operating Voltage Range 150 Vdc - 450 Vdc
Grid / Generator Input
Input Phase Voltage Range 65 VAC - 140 VAC
Grid Frequency Range 50/60 Hz
Bypass Overload Current 40A
Communication
Built-in Interface RS485 / CAN / USB / dry contact*
* Adjustable
External Module (Optional) Wi-Fi / GPRS*
* Adjustable
Standard & Certification
Safety Standards IEC62109-1, IEC62109-2, and UL1741
EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B
RoHS Yes
Efficiency
MPPT Tracking Efficiency 99.9%
Maximum Efficiency of Battery Inverter 93%

Features

Maximize Performance, Flexibility, and Control

  • High-Capacity Solar Charging
    The built-in solar charge controller supports up to 140A, maximizing solar input for faster, more efficient battery charging—ideal for large off-grid systems or high-usage households.

  • Dual Power Source Compatibility
    Supports grid and generator input with intelligent switching, giving you seamless power management and uninterrupted operation during outages or low solar production.

  • Time-of-Use Optimization
    Advanced time-sharing functionality allows users to schedule charge and discharge cycles, optimizing energy usage and reducing reliance on expensive utility rates.

  • Safe & Stable Operation with Optional CT
    Optional current transformers (CTs) enhance system safety and reliability by monitoring current flow and enabling precise load control and protection.

  • Scalable Up to 39kW
    Parallel up to six EV6500-S units for a total output of 39kW, making it a powerful choice for large homes, small businesses, and off-grid compounds.

  • Versatile Application Support
    Designed for a range of energy scenarios including Backup Power, Off-Grid Living, Peak Shaving, Net Metering, Smart Load Control, and Microgrid Installations—all in one rugged and intelligent package.

Key Product Highlights

  • Rated Output Power: 6,500W
  • Max. Output Power: 13,000W
  • Rated Output Voltage: 120/240 Vac (single/split-phase)
  • Frequency: 50/60Hz
  • Rated Battery Voltage: 48V
  • Max. Input Short Circuit Current: 18A+18A
  • No. of MPPT: 1+1

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